Universal dynamical decoupling of a single solid-state spin from a spin bath

Abstract

Controlling the interaction of a single quantum system with its environment is a fundamental challenge in quantum science and technology. We dramatically suppress the coupling of a single spin in diamond with the surrounding spin bath by using double-axis dynamical decoupling. The coherence is preserved for arbitrary quantum states, as verified by quantum process tomography. The resulting coherence time enhancement is found to follow a general scaling with the number of decoupling pulses. No limit is observed for the decoupling action up to 136 pulses, for which the coherence time is enhanced more than 25 times compared to spin echo. These results uncover a new regime for experimental quantum science and allow to overcome a major hurdle for implementing quantum information protocols.

submitted 24 May 2010; published online 9 September 2010

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• Room-temperature coherent control of implanted defect spins in silicon carbide
• $CdT{e}_{0.25}S{e}_{0.75}$ Quantum Dots as Efficient Room Temperature Single Photon Source for Quantum Technology
• Intrinsic and induced quantum quenches for enhancing qubit-based quantum noise spectroscopy
• Coherence Protection of Electron Spin in Earth-field Range by All-optical Dynamic Decoupling
• Dissipation-assisted quantum correlations in coupled qubits
• Estimation of nuclear polarization via discrete measurement of NV center spin evolution
• Nuclear Spins as Quantum Testbeds: Singlet States, Quantum Correlations, and Delayed-choice Experiments
• Sensing single molecule magnets with nitrogen vacancy centers
• Predictive tracking of the NV Center based on external temperature sensors
• Probing the collective dynamics of nuclear spin bath in a rare-earth ion doped crystal
• Quantum Zeno effect in a nitrogen-vacancy center embedded in a spin bath
• Quantum sensing in the fractional Fourier domain
• Extension of the Coherence Time by Generating MW Dressed States in a Single NV Centre in Diamond
• Principles and Techniques of the Quantum Diamond Microscope
• Spin-qubit Noise Spectroscopy of Magnetic Berezinskii-Kosterlitz-Thouless Physics
• Nonperturbative leakage elimination for a logical qubit encoded in a mechanical oscillator
• Proposed rapid detection of nuclear spins with entanglement-enhanced sensors
• Non-Markovianity Benefits Quantum Dynamics Simulation
• Efficiency of optimal control for noisy spin qubits in diamond
• Real-Time Magnetometry Using Dark States of a Nitrogen Vacancy Center
• Ancilla Assisted Quantum Information Processing: General protocols and NMR implementations
• From Independent to Joint: Enhancing Quantum Phase and Correlation Factor Estimation by Squeezed Reservoir Engineering
• Decoherence imaging of spin ensembles using a scanning single-electron spin in diamond
• Efficient creation of shallow NV${}^{-}$ ensembles by high-angle ion implantation
• Dynamical decoupling protection for three-level systems
• Dynamics and Control of Two Coupled Quantum Oscillators: An Analytical Approach
• Routing single photons with quantum emitters coupled to nanostructures
• Observation of hierarchy of Hilbert space ergodicities in the quantum dynamics of a single spin
• Electrical Control for Extension of Ramsey Spin Coherence Time of Ion-Implanted Nitrogen Vacancy Centers in diamond
• Can ultraprecision polishing techniques improve the coherence times of nitrogen-vacancy centers in diamond?
• Quantumness protection for open systems in a double-layer environment